The invention provides a method for suppressing insufficient spread of
droplets or mixing of the droplets in neighboring regions when a liquid
material is disposed in the regions on a substrate by ejecting the
droplets composed of the liquid material. In addition, for a display
device, the structure in which insufficient spread of droplets or mixing
of the droplets in neighboring regions can be suppressed and the
manufacturing method therefor are provided. To accomplish the above,
substantially square regions can be formed by a partition provided on a
substrate. In each region, among internal surfaces and of the partition
surrounding this region, the internal surfaces forming the long sides of
the region have irregularities. In addition, the distance between parts
of the partition opposing each other with one of regions provided
therebetween is increased and decreased along the long side of the
region. Furthermore, along the long side of the region, the width of the
partition will be increased and decreased.